大般涅槃經義記 6.162

6.162

下明遍知，知修中道得大菩提故曰遍知。下一復次捨小歸大，「正名可數」舉其小也，可數可量正是小乘，故名為正。言遍知者，「不可數」等明佛捨小，住大乘也。下一舉小顯大可知。

Below, it explains universal knowledge: knowing that cultivating the Middle Way attains great bodhi is therefore called universal knowledge. The next round explains abandoning the small and returning to the great: 'correctly termed countable' raises the small: being countable and measurable is precisely the Hīnayāna, hence called 'correct'. As for 'universal knowledge', 'uncountable', etc., explains that the Buddha abandons the small and abides in the Mahāyāna. The next one raises the small to reveal the great, which is understandable.